Cooking stove



Mr@ 1Q m32- s. A., HARRINGTON COOKING STOVE Feb. 7, 1929 Filed INVENTOR jM Y MDM? ATTORNEY and more adapted to Patented Mar. 1,. 1932 UNITE!) S" PATENT oi-Fica SAMUELLHABRINGTQN, or aucun, omo

Voooimve l applicati@ lmet; February 7 im. anni in. asalta This invention'` relates to cooking stoves be set on tab'les, counters, or the 5 like ,and to be heated byelectricity.

y ance and com act in structure.l

'- m'stove which will conserve heat and 16 y ing'drawings, in which:

Y the casin j An object of the invention Ais -to' provide an improvedstove which is neat in appear- Another object isto'p'rovide an improved nomical in operation. i

- Other objects will hereinafter appear.;

e invention will be' better understood from the description of one practical embodinient thereof, illustrated in the accompanyigure 1 is a cross sectional view ofa stove designed for use in preparing sandwiches; y

Figure 2 is a cross sectional view of the same taken on line II--II of Figure 1; and

30 vhinged to the casing at one side and fitted with a latch 8 or the like to retain the doorf in closed ,position v v Secure to the interior of the sides ofthe casing and extending horizontally substantially on a level Awith the' top of the door are metal angles 9 which support the heating element and its associated parts. The casing, above these angles, vheat insulating material 10, such as asbestos paper. Within the lining is a horizontal wall 11 which rests upon the angles and has an upturned marginal flange 12 which frictionally engages the lining to maintain the wall in place.

The inner surface of the y flange, is lined with a layer 13 of heat insulatf* ing material similar to that between the flange .and casing, both layers being conveniently retained in place by a suitable heat withstand-p' ing adhesive.

. particularly vto portable Astoves l Figure 3 is a plan section of the same'taken on line III--III is lined with a layer of the door. a handle y' 1The`` stove is, partie `Supported by the wall is the heating element. This consists of anl insulating framework supporting two coils of resistance wire -14 and 15, which extend back and forth as best shown in Figure 3, forming a plurality of interpenetrating loops kso that each coil extends throughout substantially the entire extent of the element so that the whole element will be uniformlyheated by eitheror both coils. The ends of the coils are connected to a "switch 16, to whichv is also connected a source of electric current such as an ordinary illumi- -nating circuit, the connection to the source beingv conveniently made by flexible lamp cord includinge plug and socket so that it may be easily effected or broken. The switch is of a type that may be operated to supply current. to one or both coils, or to both in series or parallel, so that the resistance in the circuit and the controlled.

The framework supporting these coils consists of a plurality of transverse bars 17 of insulating material, asbestos being' a `ma` heat generated may easily 7 terial that has been found satisfactory, prou vided with perforations 18 through lwhich the'coils extend. These bars are capped on their upper and lower edges by metal channels 19, the ends of which are formedinto 'lugs 20 which extend through slots in two l'longitudinally extending channels 21 and are bent overgto lock the parts'togethen Above the heating element is a cooking plate or griddle 22 having a marginal-fiange 85 23 which frictionally engages a similar coil protecting plate 22a with asimilar flange 23a which in turn engages lininglB. A removable cover 24, having a handle 25, lits over the top of the casing,lenclosing the space 90 above the griddle. y y .flwo strips of metal 26 of' substantially Z 'shafped cross section are secured to the underside of wall 11. A wall, including its pan 27 is supported by a flange 28 engaging track like guides along which the pan may be moved into or out of thecasing through 29 being provided to facili# tate the handling of the pan.

these strips, which form 05 ularly useful inthe 100 Y articles upon the griddle, as this receives all the convected heat and at least half of the radiated heat. However, sufficient heat travels down to the compartment below to keep the bread or rolls Warm, and this heat,

encountering the water in the pan first,

vaporizes enough of the water to distribute the heat evenly through the compartment and to thoroughly; warm all the bread and kep it moist so t at it does not become dry an hard. v

Substantially all the heat is expended on either the material on the griddle or that in the conipartmentso that the efficiency of the apparatus is high. Very little electricity is used in kee ing the material Warm during lulls in the demandtherefor, while when the demand increases, the heat generated may be almost instantaneously increased to take care of the same.

While I have described the illustrated einbodiment of my invention in some particularity, it is obvious that many others will readily occur to those skilled inthe art to which it appertains and I do not, therefore, limit mysel to the exact details shown and described, but claim as my invention all embodiments coming within the scope of the ap ended claims.

claim: 1. A stove comprising a casing, a horizontal wall therein supporting a heating element, said element comprising a plurality of spaced parallel perforated bars of insulating material, two channel-shaped side members nor-1 mal to said bars and extending alon their y edges and secured thereto to maintain t ie bars v in spaced relation, two independent coils of wire passing back and forth through the perforations to :form alternate loops, so that each coil extends in heating relation to substanwall, and means for supplying electricity setially' the -entiresurface of said horizontal lectively to either or both ofsaid coils.

2. A stove comprising a casing, a horizontal wall therein for supporting a heating element, an electrical heating element resting on said wall and comprising a plurality of spaced v y parallel p rial stan gerforatedkbars of insulating mateing on edge, metal cap strips along the upper and lowr edges of each bar, two horizontal bars extendin normal to said insulating bars and secured to said cap strips, a plurality of coils of wire extending through the perforations in the bars to form a plurality of inter-digitating loops, and means for selectively supplying electricity to one or more of said coils.

3. A stove comprising a casing, a horizontal heating-element-supporting wall therein, a heating element resting upon said wall and comprising a plurality of spaced parallel (perforated bars of insulating material stan ing on edge, metallic channel-shaped cap strips embracing the upper and lower ed'es of said bars and having projecting lugs iorined on their ends, two channel-shaped side bars enibracing the ends of said insulating bars and having perforations through which said lugs exten the lu s being turned to secure the cap strips to t e two side bars, and coils of wire extending back and forth through the perfor-ations in said bars..

4. A stove comprising a casing, a horizontal heatiiig-element-supporting wall therein, a heating element restino upon said wall and comprising a plurality o spaced parallel )erforated bars of insulating material stan ing on edge, metallic channel-shaped cap strips embracinfir the upper and lower edges of said bars and r:having projecting lugs formed on their ends, two channel-shaped side bars embracing the ends of said insulating bars and having perforations through which said lugs extend, the lugs being turned to secure the cap stri s to the two side bars, coils of wire exten ing back and forth through the perforations in said bars, and a horizontal cooking surface positioned immediately above said heating element.

5. A stove comprising a casing, a door in one side thereof, a horizontal wall extending across the casing adjacent the top of the door, heat insulating material between the casing and wall, a horizontal griddle supported by and above the wall, heat insulating material between the griddle and casing, a removable cover carried by the casing and extending over the griddle, a heating element between the wall and griddle, 4horizontal guides upon the underside of the wall, and a pan supported by and slidable in said guides.

In testimony whereof I hereunto ail'ix my signature this 12th day of January, 1929.

S. A. HARRINGTON.- 

